JS94H-1 Micro Electrophoresis Zeta Potential Analyzer

Product Introduction

The JS94H-1 Micro Electrophoresis Zeta Potential Analyzer is designed to measure the zeta potential of solid-liquid interfaces in particle dispersion systems and the interfacial electrical properties of emulsion droplets. It also supports isoelectric point determination and the investigation of interfacial reaction mechanisms.

By analyzing particle zeta potential and isoelectric points, the instrument helps researchers understand surface electrical properties, evaluate colloidal stability, and investigate particle surface modification processes.

Featuring a low-volume electrophoresis cell, precision optical positioning, and a semiconductor near-field optical system, the JS94H-1 offers reliable measurements with minimal sample consumption. It is suitable for cosmetics, mineral processing, papermaking, pharmaceuticals, healthcare, building materials, ultrafine materials, environmental protection, marine chemistry, and laboratory education.

Performance Features

1. Low Sample Consumption: The specially designed electrophoresis cell requires only 0.5 mL of sample per measurement, reducing sample waste and operating costs.

2. Specialized Electrophoresis Cell: A 0.5 cm thick glass cell with built-in electrodes provides a specially engineered flow field for stable electrophoresis measurements.

3. Stable Electrode System: The precision electrode holder works closely with the open-cup electrophoresis cell. Silver, platinum, and titanium electrode wires are available with surface treatment for stable operation.

4. Three-Dimensional Positioning: A precision three-dimensional adjustment platform and crosshair positioning system allow operators to locate measurement positions accurately through the computer display.

5. No Stationary Layer Positioning Issue: The crosshair-based optical positioning arrangement helps eliminate measurement positioning difficulties associated with stationary layers.

6. Low-Power Optical System: Semiconductor near-field optical illumination operates at only tens of microwatts, minimizing heat generation and its potential influence on measurement accuracy.

7. Enhanced Particle Observation: Adjustable optical magnification and shorter-wavelength blue and green light improve the observation of smaller particles.

8. Easy Operation and Cleaning: The open-cup electrophoresis design simplifies sample loading, cleaning, and routine operation.

Working Principle

The JS94H-1 operates based on the micro-electrophoresis principle. When an electric field is applied to a particle dispersion system, charged particles migrate through the liquid medium according to their electrophoretic mobility.

The instrument uses a specialized electrophoresis cell with integrated electrodes and an optical observation system to monitor particle movement. By observing particle migration under controlled conditions, the instrument determines the zeta potential associated with the electrical characteristics of the particle-liquid interface.

It can also be used to investigate emulsion droplet surface charge and determine isoelectric points by examining changes in particle electrophoretic behavior under different pH conditions.

Technical Parameters

Application Scenarios

• Cosmetics Industry: Evaluate the surface charge and dispersion stability of cosmetic emulsions, suspensions, and fine particles.

•  Mineral Processing: Study the surface electrical properties of mineral particles to support flotation and dispersion optimization.

• Papermaking Industry: Analyze particle surface charge in pulp, fillers, and papermaking chemical systems.

• Pharmaceutical Research: Investigate colloidal systems, pharmaceutical suspensions, and particle surface modification.

• Building Materials: Evaluate the dispersion characteristics and interfacial properties of cement and other fine material systems.

•   Environmental Protection: Study suspended particles and colloidal pollutants in environmental samples.

•  Marine Chemistry: Investigate the interfacial electrical behavior of particles in marine and aqueous environments.

• Scientific Research and Education: Support experiments involving electrophoresis, colloid chemistry, surface science, and interfacial reaction mechanisms.

JS94H-1 vs. Conventional Electrophoresis Apparatus

Frequently Asked Questions (FAQ)

1. What is the JS94H-1 Micro Electrophoresis Zeta Potential Analyzer used for?

It measures the zeta potential of particle dispersion systems and emulsion droplets, determines isoelectric points, and investigates interfacial electrical properties.

2. What is the sample volume required for each measurement?

The instrument requires approximately 0.5 mL of sample per measurement, making it suitable for applications where sample availability is limited.

3. What particle size range can the JS94H-1 measure?

It is designed for dispersed systems with particle sizes ranging from 0.5 to 20 μm.

4. What is the measurement accuracy of this instrument?

The specified measurement error is within 5%, supporting reliable analysis of particle surface electrical properties.

5. Can the JS94H-1 measure the isoelectric point?

Yes. It can determine the isoelectric point by investigating particle electrophoretic behavior under different pH conditions.

6. What is the applicable pH range?

The instrument supports a pH range of 2.0–12.0 or 1.6–13.0, depending on the configuration, with an adjustment step of 0.1.

7. What makes the electrophoresis cell different from conventional designs?

It features a specially designed 0.5 cm thick glass cell with built-in electrodes and a precision-engineered flow field. Its open-cup structure simplifies sample loading and cleaning.

8. How does the optical system improve measurement performance?

The low-power semiconductor near-field optical system minimizes heat generation. Adjustable magnification and shorter-wavelength blue and green illumination help operators observe smaller particles more clearly.

9. Which industries can benefit from the JS94H-1?

It is suitable for cosmetics, mineral processing, papermaking, pharmaceuticals, building materials, environmental protection, marine chemistry, and scientific research.